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As you know,If the Data Converters use an external reference,sometimes we may use an amplifier as a buffer.
There are some questions as below:
1.Why do we use an amplifier as a buffer for the external reference?
2.How to choose a right amplifier? What parameters must be considered?
The Reference Driver Design section of this document (TIPD115) gives a comprehensive description of the key equations and parameters related to the design of the amplifier to buffer the external reference.
I hope this helps.
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